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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
1da177e4 LT |
2 | /* |
3 | * Synaptics TouchPad PS/2 mouse driver | |
4 | * | |
5 | * 2003 Dmitry Torokhov <dtor@mail.ru> | |
6 | * Added support for pass-through port. Special thanks to Peter Berg Larsen | |
7 | * for explaining various Synaptics quirks. | |
8 | * | |
9 | * 2003 Peter Osterlund <petero2@telia.com> | |
10 | * Ported to 2.5 input device infrastructure. | |
11 | * | |
12 | * Copyright (C) 2001 Stefan Gmeiner <riddlebox@freesurf.ch> | |
13 | * start merging tpconfig and gpm code to a xfree-input module | |
14 | * adding some changes and extensions (ex. 3rd and 4th button) | |
15 | * | |
16 | * Copyright (c) 1997 C. Scott Ananian <cananian@alumni.priceton.edu> | |
17 | * Copyright (c) 1998-2000 Bruce Kalk <kall@compass.com> | |
18 | * code for the special synaptics commands (from the tpconfig-source) | |
19 | * | |
1da177e4 LT |
20 | * Trademarks are the property of their respective owners. |
21 | */ | |
22 | ||
23 | #include <linux/module.h> | |
8521478f | 24 | #include <linux/delay.h> |
7705d548 | 25 | #include <linux/dmi.h> |
fec6e525 | 26 | #include <linux/input/mt.h> |
1da177e4 LT |
27 | #include <linux/serio.h> |
28 | #include <linux/libps2.h> | |
e839ffab BT |
29 | #include <linux/rmi.h> |
30 | #include <linux/i2c.h> | |
5a0e3ad6 | 31 | #include <linux/slab.h> |
1da177e4 LT |
32 | #include "psmouse.h" |
33 | #include "synaptics.h" | |
34 | ||
35 | /* | |
36 | * The x/y limits are taken from the Synaptics TouchPad interfacing Guide, | |
37 | * section 2.3.2, which says that they should be valid regardless of the | |
38 | * actual size of the sensor. | |
83ba9ea8 DT |
39 | * Note that newer firmware allows querying device for maximum useable |
40 | * coordinates. | |
1da177e4 | 41 | */ |
c0394506 SF |
42 | #define XMIN 0 |
43 | #define XMAX 6143 | |
44 | #define YMIN 0 | |
45 | #define YMAX 6143 | |
1da177e4 LT |
46 | #define XMIN_NOMINAL 1472 |
47 | #define XMAX_NOMINAL 5472 | |
48 | #define YMIN_NOMINAL 1408 | |
49 | #define YMAX_NOMINAL 4448 | |
50 | ||
c0394506 SF |
51 | /* Size in bits of absolute position values reported by the hardware */ |
52 | #define ABS_POS_BITS 13 | |
53 | ||
54 | /* | |
824efd37 SF |
55 | * These values should represent the absolute maximum value that will |
56 | * be reported for a positive position value. Some Synaptics firmware | |
57 | * uses this value to indicate a finger near the edge of the touchpad | |
58 | * whose precise position cannot be determined. | |
59 | * | |
60 | * At least one touchpad is known to report positions in excess of this | |
61 | * value which are actually negative values truncated to the 13-bit | |
62 | * reporting range. These values have never been observed to be lower | |
63 | * than 8184 (i.e. -8), so we treat all values greater than 8176 as | |
64 | * negative and any other value as positive. | |
c0394506 | 65 | */ |
824efd37 SF |
66 | #define X_MAX_POSITIVE 8176 |
67 | #define Y_MAX_POSITIVE 8176 | |
55e3d922 | 68 | |
58fd9af6 BT |
69 | /* maximum ABS_MT_POSITION displacement (in mm) */ |
70 | #define DMAX 10 | |
71 | ||
1da177e4 | 72 | /***************************************************************************** |
55e3d922 | 73 | * Stuff we need even when we do not want native Synaptics support |
1da177e4 LT |
74 | ****************************************************************************/ |
75 | ||
76 | /* | |
55e3d922 | 77 | * Set the synaptics touchpad mode byte by special commands |
1da177e4 | 78 | */ |
f6c4442b | 79 | static int synaptics_mode_cmd(struct psmouse *psmouse, u8 mode) |
1da177e4 | 80 | { |
f6c4442b | 81 | u8 param[1]; |
212baf03 DT |
82 | int error; |
83 | ||
08be954b | 84 | error = ps2_sliced_command(&psmouse->ps2dev, mode); |
212baf03 DT |
85 | if (error) |
86 | return error; | |
55e3d922 | 87 | |
55e3d922 | 88 | param[0] = SYN_PS_SET_MODE2; |
212baf03 DT |
89 | error = ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE); |
90 | if (error) | |
91 | return error; | |
92 | ||
1da177e4 LT |
93 | return 0; |
94 | } | |
95 | ||
b7802c5c | 96 | int synaptics_detect(struct psmouse *psmouse, bool set_properties) |
55e3d922 AS |
97 | { |
98 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
f39f8688 | 99 | u8 param[4] = { 0 }; |
55e3d922 AS |
100 | |
101 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
102 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
103 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
104 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
105 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO); | |
106 | ||
107 | if (param[1] != 0x47) | |
108 | return -ENODEV; | |
109 | ||
110 | if (set_properties) { | |
111 | psmouse->vendor = "Synaptics"; | |
112 | psmouse->name = "TouchPad"; | |
113 | } | |
114 | ||
115 | return 0; | |
116 | } | |
117 | ||
118 | void synaptics_reset(struct psmouse *psmouse) | |
119 | { | |
120 | /* reset touchpad back to relative mode, gestures enabled */ | |
121 | synaptics_mode_cmd(psmouse, 0); | |
122 | } | |
123 | ||
e839ffab BT |
124 | #if defined(CONFIG_MOUSE_PS2_SYNAPTICS) || \ |
125 | defined(CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS) | |
0f68f39c | 126 | |
43e19888 HG |
127 | /* This list has been kindly provided by Synaptics. */ |
128 | static const char * const topbuttonpad_pnp_ids[] = { | |
129 | "LEN0017", | |
130 | "LEN0018", | |
131 | "LEN0019", | |
132 | "LEN0023", | |
133 | "LEN002A", | |
134 | "LEN002B", | |
135 | "LEN002C", | |
136 | "LEN002D", | |
137 | "LEN002E", | |
138 | "LEN0033", /* Helix */ | |
0f68f39c | 139 | "LEN0034", /* T431s, L440, L540, T540, W540, X1 Carbon 2nd */ |
43e19888 HG |
140 | "LEN0035", /* X240 */ |
141 | "LEN0036", /* T440 */ | |
8543cf1c | 142 | "LEN0037", /* X1 Carbon 2nd */ |
43e19888 | 143 | "LEN0038", |
e4742b1e | 144 | "LEN0039", /* T440s */ |
43e19888 HG |
145 | "LEN0041", |
146 | "LEN0042", /* Yoga */ | |
147 | "LEN0045", | |
43e19888 | 148 | "LEN0047", |
7f2ca8b5 | 149 | "LEN2000", /* S540 */ |
0f68f39c | 150 | "LEN2001", /* Edge E431 */ |
e76aed9d | 151 | "LEN2002", /* Edge E531 */ |
43e19888 HG |
152 | "LEN2003", |
153 | "LEN2004", /* L440 */ | |
154 | "LEN2005", | |
98dc0703 | 155 | "LEN2006", /* Edge E440/E540 */ |
43e19888 HG |
156 | "LEN2007", |
157 | "LEN2008", | |
158 | "LEN2009", | |
159 | "LEN200A", | |
160 | "LEN200B", | |
161 | NULL | |
162 | }; | |
55e3d922 | 163 | |
e839ffab BT |
164 | static const char * const smbus_pnp_ids[] = { |
165 | /* all of the topbuttonpad_pnp_ids are valid, we just add some extras */ | |
166 | "LEN0048", /* X1 Carbon 3 */ | |
167 | "LEN0046", /* X250 */ | |
5179a9df | 168 | "LEN0049", /* Yoga 11e */ |
e839ffab | 169 | "LEN004a", /* W541 */ |
9df39bed | 170 | "LEN005b", /* P50 */ |
ca504728 | 171 | "LEN005e", /* T560 */ |
bf502391 | 172 | "LEN006c", /* T470s */ |
642aa86e | 173 | "LEN007a", /* T470s */ |
ad8fb554 | 174 | "LEN0071", /* T480 */ |
9b207102 | 175 | "LEN0072", /* X1 Carbon Gen 5 (2017) - Elan/ALPS trackpoint */ |
15e2cffe | 176 | "LEN0073", /* X1 Carbon G5 (Elantech) */ |
fc1156f3 | 177 | "LEN0091", /* X1 Carbon 6 */ |
5717a09a | 178 | "LEN0092", /* X1 Carbon 6 */ |
abbe3acd | 179 | "LEN0093", /* T480 */ |
5717a09a | 180 | "LEN0096", /* X280 */ |
ad8fb554 | 181 | "LEN0097", /* X280 -> ALPS trackpoint */ |
127e4a1b | 182 | "LEN0099", /* X1 Extreme Gen 1 / P1 Gen 1 */ |
1976d7d2 | 183 | "LEN009b", /* T580 */ |
127e4a1b | 184 | "LEN0402", /* X1 Extreme Gen 2 / P1 Gen 2 */ |
7984b435 | 185 | "LEN040f", /* P1 Gen 3 */ |
e839ffab | 186 | "LEN200f", /* T450s */ |
b8a3d819 | 187 | "LEN2044", /* L470 */ |
9843f3e0 AM |
188 | "LEN2054", /* E480 */ |
189 | "LEN2055", /* E580 */ | |
470d154a | 190 | "LEN2068", /* T14 Gen 1 */ |
7a717122 | 191 | "SYN3052", /* HP EliteBook 840 G4 */ |
5a6dab15 | 192 | "SYN3221", /* HP 15-ay000 */ |
25f8c834 | 193 | "SYN323d", /* HP Spectre X360 13-w013dx */ |
1369d0ab | 194 | "SYN3257", /* HP Envy 13-ad105ng */ |
de4e374b DT |
195 | NULL |
196 | }; | |
197 | ||
f4101ff8 BT |
198 | static const char * const forcepad_pnp_ids[] = { |
199 | "SYN300D", | |
200 | "SYN3014", | |
201 | NULL | |
202 | }; | |
203 | ||
1a49a0a0 | 204 | /* |
26332247 | 205 | * Send a command to the synaptics touchpad by special commands |
1a49a0a0 | 206 | */ |
f6c4442b | 207 | static int synaptics_send_cmd(struct psmouse *psmouse, u8 cmd, u8 *param) |
1a49a0a0 | 208 | { |
e839ffab BT |
209 | int error; |
210 | ||
08be954b | 211 | error = ps2_sliced_command(&psmouse->ps2dev, cmd); |
e839ffab BT |
212 | if (error) |
213 | return error; | |
214 | ||
215 | error = ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO); | |
216 | if (error) | |
217 | return error; | |
218 | ||
219 | return 0; | |
1a49a0a0 JD |
220 | } |
221 | ||
2c6ecbba DT |
222 | static int synaptics_query_int(struct psmouse *psmouse, u8 query_cmd, u32 *val) |
223 | { | |
224 | int error; | |
225 | union { | |
226 | __be32 be_val; | |
227 | char buf[4]; | |
228 | } resp = { 0 }; | |
229 | ||
230 | error = synaptics_send_cmd(psmouse, query_cmd, resp.buf + 1); | |
231 | if (error) | |
232 | return error; | |
233 | ||
234 | *val = be32_to_cpu(resp.be_val); | |
235 | return 0; | |
236 | } | |
237 | ||
1da177e4 | 238 | /* |
e839ffab BT |
239 | * Identify Touchpad |
240 | * See also the SYN_ID_* macros | |
1da177e4 | 241 | */ |
e839ffab BT |
242 | static int synaptics_identify(struct psmouse *psmouse, |
243 | struct synaptics_device_info *info) | |
1da177e4 | 244 | { |
e839ffab BT |
245 | int error; |
246 | ||
2c6ecbba | 247 | error = synaptics_query_int(psmouse, SYN_QUE_IDENTIFY, &info->identity); |
e839ffab BT |
248 | if (error) |
249 | return error; | |
250 | ||
e839ffab | 251 | return SYN_ID_IS_SYNAPTICS(info->identity) ? 0 : -ENXIO; |
1da177e4 LT |
252 | } |
253 | ||
254 | /* | |
255 | * Read the model-id bytes from the touchpad | |
256 | * see also SYN_MODEL_* macros | |
257 | */ | |
6c53694f DT |
258 | static int synaptics_model_id(struct psmouse *psmouse, |
259 | struct synaptics_device_info *info) | |
1da177e4 | 260 | { |
2c6ecbba | 261 | return synaptics_query_int(psmouse, SYN_QUE_MODEL, &info->model_id); |
1da177e4 LT |
262 | } |
263 | ||
e839ffab BT |
264 | /* |
265 | * Read the firmware id from the touchpad | |
266 | */ | |
267 | static int synaptics_firmware_id(struct psmouse *psmouse, | |
268 | struct synaptics_device_info *info) | |
269 | { | |
2c6ecbba DT |
270 | return synaptics_query_int(psmouse, SYN_QUE_FIRMWARE_ID, |
271 | &info->firmware_id); | |
06aa374b BT |
272 | } |
273 | ||
c6bd9d46 | 274 | /* |
06aa374b | 275 | * Read the board id and the "More Extended Queries" from the touchpad |
c6bd9d46 DK |
276 | * The board id is encoded in the "QUERY MODES" response |
277 | */ | |
6c53694f DT |
278 | static int synaptics_query_modes(struct psmouse *psmouse, |
279 | struct synaptics_device_info *info) | |
c6bd9d46 | 280 | { |
f6c4442b | 281 | u8 bid[3]; |
6c53694f | 282 | int error; |
c6bd9d46 | 283 | |
b57a7128 | 284 | /* firmwares prior 7.5 have no board_id encoded */ |
6c53694f | 285 | if (SYN_ID_FULL(info->identity) < 0x705) |
b57a7128 BT |
286 | return 0; |
287 | ||
6c53694f DT |
288 | error = synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid); |
289 | if (error) | |
290 | return error; | |
291 | ||
292 | info->board_id = ((bid[0] & 0xfc) << 6) | bid[1]; | |
06aa374b BT |
293 | |
294 | if (SYN_MEXT_CAP_BIT(bid[0])) | |
2c6ecbba DT |
295 | return synaptics_query_int(psmouse, SYN_QUE_MEXT_CAPAB_10, |
296 | &info->ext_cap_10); | |
06aa374b | 297 | |
c6bd9d46 DK |
298 | return 0; |
299 | } | |
300 | ||
1da177e4 LT |
301 | /* |
302 | * Read the capability-bits from the touchpad | |
303 | * see also the SYN_CAP_* macros | |
304 | */ | |
6c53694f DT |
305 | static int synaptics_capability(struct psmouse *psmouse, |
306 | struct synaptics_device_info *info) | |
1da177e4 | 307 | { |
6c53694f | 308 | int error; |
1da177e4 | 309 | |
2c6ecbba DT |
310 | error = synaptics_query_int(psmouse, SYN_QUE_CAPABILITIES, |
311 | &info->capabilities); | |
6c53694f DT |
312 | if (error) |
313 | return error; | |
314 | ||
6c53694f | 315 | info->ext_cap = info->ext_cap_0c = 0; |
5f57d67d | 316 | |
3619b8fe DT |
317 | /* |
318 | * Older firmwares had submodel ID fixed to 0x47 | |
319 | */ | |
6c53694f DT |
320 | if (SYN_ID_FULL(info->identity) < 0x705 && |
321 | SYN_CAP_SUBMODEL_ID(info->capabilities) != 0x47) { | |
322 | return -ENXIO; | |
3619b8fe | 323 | } |
1da177e4 LT |
324 | |
325 | /* | |
326 | * Unless capExtended is set the rest of the flags should be ignored | |
327 | */ | |
6c53694f DT |
328 | if (!SYN_CAP_EXTENDED(info->capabilities)) |
329 | info->capabilities = 0; | |
1da177e4 | 330 | |
6c53694f | 331 | if (SYN_EXT_CAP_REQUESTS(info->capabilities) >= 1) { |
2c6ecbba DT |
332 | error = synaptics_query_int(psmouse, SYN_QUE_EXT_CAPAB, |
333 | &info->ext_cap); | |
334 | if (error) { | |
b5d21704 DT |
335 | psmouse_warn(psmouse, |
336 | "device claims to have extended capabilities, but I'm not able to read them.\n"); | |
1da177e4 | 337 | } else { |
1da177e4 LT |
338 | /* |
339 | * if nExtBtn is greater than 8 it should be considered | |
340 | * invalid and treated as 0 | |
341 | */ | |
6c53694f | 342 | if (SYN_CAP_MULTI_BUTTON_NO(info->ext_cap) > 8) |
2c6ecbba | 343 | info->ext_cap &= ~SYN_CAP_MB_MASK; |
1da177e4 LT |
344 | } |
345 | } | |
5f57d67d | 346 | |
6c53694f | 347 | if (SYN_EXT_CAP_REQUESTS(info->capabilities) >= 4) { |
2c6ecbba DT |
348 | error = synaptics_query_int(psmouse, SYN_QUE_EXT_CAPAB_0C, |
349 | &info->ext_cap_0c); | |
6c53694f | 350 | if (error) |
b5d21704 DT |
351 | psmouse_warn(psmouse, |
352 | "device claims to have extended capability 0x0c, but I'm not able to read it.\n"); | |
5f57d67d TI |
353 | } |
354 | ||
1da177e4 LT |
355 | return 0; |
356 | } | |
357 | ||
ec20a022 | 358 | /* |
83ba9ea8 | 359 | * Read touchpad resolution and maximum reported coordinates |
ec20a022 TS |
360 | * Resolution is left zero if touchpad does not support the query |
361 | */ | |
6c53694f DT |
362 | static int synaptics_resolution(struct psmouse *psmouse, |
363 | struct synaptics_device_info *info) | |
ec20a022 | 364 | { |
f6c4442b | 365 | u8 resp[3]; |
6c53694f | 366 | int error; |
ec20a022 | 367 | |
6c53694f | 368 | if (SYN_ID_MAJOR(info->identity) < 4) |
bbddd199 | 369 | return 0; |
ec20a022 | 370 | |
6c53694f DT |
371 | error = synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, resp); |
372 | if (!error) { | |
a66413fb | 373 | if (resp[0] != 0 && (resp[1] & 0x80) && resp[2] != 0) { |
6c53694f DT |
374 | info->x_res = resp[0]; /* x resolution in units/mm */ |
375 | info->y_res = resp[2]; /* y resolution in units/mm */ | |
83ba9ea8 DT |
376 | } |
377 | } | |
ec20a022 | 378 | |
6c53694f DT |
379 | if (SYN_EXT_CAP_REQUESTS(info->capabilities) >= 5 && |
380 | SYN_CAP_MAX_DIMENSIONS(info->ext_cap_0c)) { | |
381 | error = synaptics_send_cmd(psmouse, | |
382 | SYN_QUE_EXT_MAX_COORDS, resp); | |
383 | if (error) { | |
b5d21704 DT |
384 | psmouse_warn(psmouse, |
385 | "device claims to have max coordinates query, but I'm not able to read it.\n"); | |
a66413fb | 386 | } else { |
6c53694f DT |
387 | info->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); |
388 | info->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); | |
9aff6598 DM |
389 | psmouse_info(psmouse, |
390 | "queried max coordinates: x [..%d], y [..%d]\n", | |
6c53694f | 391 | info->x_max, info->y_max); |
a66413fb DT |
392 | } |
393 | } | |
394 | ||
6c53694f DT |
395 | if (SYN_CAP_MIN_DIMENSIONS(info->ext_cap_0c) && |
396 | (SYN_EXT_CAP_REQUESTS(info->capabilities) >= 7 || | |
ac097930 DM |
397 | /* |
398 | * Firmware v8.1 does not report proper number of extended | |
399 | * capabilities, but has been proven to report correct min | |
400 | * coordinates. | |
401 | */ | |
6c53694f DT |
402 | SYN_ID_FULL(info->identity) == 0x801)) { |
403 | error = synaptics_send_cmd(psmouse, | |
404 | SYN_QUE_EXT_MIN_COORDS, resp); | |
405 | if (error) { | |
b5d21704 DT |
406 | psmouse_warn(psmouse, |
407 | "device claims to have min coordinates query, but I'm not able to read it.\n"); | |
83ba9ea8 | 408 | } else { |
6c53694f DT |
409 | info->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); |
410 | info->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); | |
9aff6598 DM |
411 | psmouse_info(psmouse, |
412 | "queried min coordinates: x [%d..], y [%d..]\n", | |
6c53694f | 413 | info->x_min, info->y_min); |
83ba9ea8 | 414 | } |
ec20a022 TS |
415 | } |
416 | ||
417 | return 0; | |
418 | } | |
419 | ||
e839ffab BT |
420 | static int synaptics_query_hardware(struct psmouse *psmouse, |
421 | struct synaptics_device_info *info) | |
422 | { | |
423 | int error; | |
424 | ||
27555511 EB |
425 | memset(info, 0, sizeof(*info)); |
426 | ||
e839ffab BT |
427 | error = synaptics_identify(psmouse, info); |
428 | if (error) | |
429 | return error; | |
430 | ||
431 | error = synaptics_model_id(psmouse, info); | |
432 | if (error) | |
433 | return error; | |
434 | ||
435 | error = synaptics_firmware_id(psmouse, info); | |
436 | if (error) | |
437 | return error; | |
438 | ||
439 | error = synaptics_query_modes(psmouse, info); | |
440 | if (error) | |
441 | return error; | |
442 | ||
443 | error = synaptics_capability(psmouse, info); | |
444 | if (error) | |
445 | return error; | |
446 | ||
447 | error = synaptics_resolution(psmouse, info); | |
448 | if (error) | |
449 | return error; | |
450 | ||
451 | return 0; | |
452 | } | |
453 | ||
454 | #endif /* CONFIG_MOUSE_PS2_SYNAPTICS || CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS */ | |
455 | ||
456 | #ifdef CONFIG_MOUSE_PS2_SYNAPTICS | |
457 | ||
458 | static bool cr48_profile_sensor; | |
459 | ||
460 | #define ANY_BOARD_ID 0 | |
461 | struct min_max_quirk { | |
462 | const char * const *pnp_ids; | |
463 | struct { | |
464 | u32 min, max; | |
465 | } board_id; | |
466 | u32 x_min, x_max, y_min, y_max; | |
467 | }; | |
468 | ||
469 | static const struct min_max_quirk min_max_pnpid_table[] = { | |
470 | { | |
471 | (const char * const []){"LEN0033", NULL}, | |
472 | {ANY_BOARD_ID, ANY_BOARD_ID}, | |
473 | 1024, 5052, 2258, 4832 | |
474 | }, | |
475 | { | |
476 | (const char * const []){"LEN0042", NULL}, | |
477 | {ANY_BOARD_ID, ANY_BOARD_ID}, | |
478 | 1232, 5710, 1156, 4696 | |
479 | }, | |
480 | { | |
481 | (const char * const []){"LEN0034", "LEN0036", "LEN0037", | |
482 | "LEN0039", "LEN2002", "LEN2004", | |
483 | NULL}, | |
484 | {ANY_BOARD_ID, 2961}, | |
485 | 1024, 5112, 2024, 4832 | |
486 | }, | |
487 | { | |
488 | (const char * const []){"LEN2000", NULL}, | |
489 | {ANY_BOARD_ID, ANY_BOARD_ID}, | |
490 | 1024, 5113, 2021, 4832 | |
491 | }, | |
492 | { | |
493 | (const char * const []){"LEN2001", NULL}, | |
494 | {ANY_BOARD_ID, ANY_BOARD_ID}, | |
495 | 1024, 5022, 2508, 4832 | |
496 | }, | |
497 | { | |
498 | (const char * const []){"LEN2006", NULL}, | |
499 | {2691, 2691}, | |
500 | 1024, 5045, 2457, 4832 | |
501 | }, | |
502 | { | |
503 | (const char * const []){"LEN2006", NULL}, | |
504 | {ANY_BOARD_ID, ANY_BOARD_ID}, | |
505 | 1264, 5675, 1171, 4688 | |
506 | }, | |
507 | { } | |
508 | }; | |
509 | ||
e839ffab BT |
510 | /***************************************************************************** |
511 | * Synaptics communications functions | |
512 | ****************************************************************************/ | |
513 | ||
514 | /* | |
515 | * Synaptics touchpads report the y coordinate from bottom to top, which is | |
516 | * opposite from what userspace expects. | |
517 | * This function is used to invert y before reporting. | |
518 | */ | |
519 | static int synaptics_invert_y(int y) | |
520 | { | |
521 | return YMAX_NOMINAL + YMIN_NOMINAL - y; | |
522 | } | |
523 | ||
8b04baba DM |
524 | /* |
525 | * Apply quirk(s) if the hardware matches | |
526 | */ | |
6c53694f DT |
527 | static void synaptics_apply_quirks(struct psmouse *psmouse, |
528 | struct synaptics_device_info *info) | |
8b04baba | 529 | { |
8b04baba DM |
530 | int i; |
531 | ||
532 | for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) { | |
5b3089dd DM |
533 | if (!psmouse_matches_pnp_id(psmouse, |
534 | min_max_pnpid_table[i].pnp_ids)) | |
535 | continue; | |
536 | ||
537 | if (min_max_pnpid_table[i].board_id.min != ANY_BOARD_ID && | |
6c53694f | 538 | info->board_id < min_max_pnpid_table[i].board_id.min) |
5b3089dd DM |
539 | continue; |
540 | ||
541 | if (min_max_pnpid_table[i].board_id.max != ANY_BOARD_ID && | |
6c53694f | 542 | info->board_id > min_max_pnpid_table[i].board_id.max) |
5b3089dd DM |
543 | continue; |
544 | ||
6c53694f DT |
545 | info->x_min = min_max_pnpid_table[i].x_min; |
546 | info->x_max = min_max_pnpid_table[i].x_max; | |
547 | info->y_min = min_max_pnpid_table[i].y_min; | |
548 | info->y_max = min_max_pnpid_table[i].y_max; | |
5b3089dd DM |
549 | psmouse_info(psmouse, |
550 | "quirked min/max coordinates: x [%d..%d], y [%d..%d]\n", | |
6c53694f DT |
551 | info->x_min, info->x_max, |
552 | info->y_min, info->y_max); | |
5b3089dd | 553 | break; |
8b04baba DM |
554 | } |
555 | } | |
556 | ||
3f9db52d AM |
557 | static bool synaptics_has_agm(struct synaptics_data *priv) |
558 | { | |
559 | return (SYN_CAP_ADV_GESTURE(priv->info.ext_cap_0c) || | |
560 | SYN_CAP_IMAGE_SENSOR(priv->info.ext_cap_0c)); | |
561 | } | |
562 | ||
7968a5dd DD |
563 | static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse) |
564 | { | |
f6c4442b | 565 | static u8 param = 0xc8; |
212baf03 | 566 | int error; |
7968a5dd | 567 | |
08be954b | 568 | error = ps2_sliced_command(&psmouse->ps2dev, SYN_QUE_MODEL); |
212baf03 DT |
569 | if (error) |
570 | return error; | |
7968a5dd | 571 | |
212baf03 DT |
572 | error = ps2_command(&psmouse->ps2dev, ¶m, PSMOUSE_CMD_SETRATE); |
573 | if (error) | |
574 | return error; | |
7968a5dd | 575 | |
7968a5dd DD |
576 | return 0; |
577 | } | |
578 | ||
579 | static int synaptics_set_mode(struct psmouse *psmouse) | |
1da177e4 LT |
580 | { |
581 | struct synaptics_data *priv = psmouse->private; | |
212baf03 | 582 | int error; |
1da177e4 | 583 | |
7968a5dd | 584 | priv->mode = 0; |
62d78461 | 585 | if (priv->absolute_mode) |
7968a5dd | 586 | priv->mode |= SYN_BIT_ABSOLUTE_MODE; |
62d78461 | 587 | if (priv->disable_gesture) |
1da177e4 | 588 | priv->mode |= SYN_BIT_DISABLE_GESTURE; |
7968a5dd DD |
589 | if (psmouse->rate >= 80) |
590 | priv->mode |= SYN_BIT_HIGH_RATE; | |
6c53694f | 591 | if (SYN_CAP_EXTENDED(priv->info.capabilities)) |
62d78461 | 592 | priv->mode |= SYN_BIT_W_MODE; |
1da177e4 | 593 | |
212baf03 DT |
594 | error = synaptics_mode_cmd(psmouse, priv->mode); |
595 | if (error) | |
596 | return error; | |
1da177e4 | 597 | |
3f9db52d | 598 | if (priv->absolute_mode && synaptics_has_agm(priv)) { |
212baf03 DT |
599 | error = synaptics_set_advanced_gesture_mode(psmouse); |
600 | if (error) { | |
601 | psmouse_err(psmouse, | |
602 | "Advanced gesture mode init failed: %d\n", | |
603 | error); | |
604 | return error; | |
605 | } | |
7968a5dd DD |
606 | } |
607 | ||
1da177e4 LT |
608 | return 0; |
609 | } | |
610 | ||
611 | static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) | |
612 | { | |
613 | struct synaptics_data *priv = psmouse->private; | |
614 | ||
615 | if (rate >= 80) { | |
616 | priv->mode |= SYN_BIT_HIGH_RATE; | |
617 | psmouse->rate = 80; | |
618 | } else { | |
619 | priv->mode &= ~SYN_BIT_HIGH_RATE; | |
620 | psmouse->rate = 40; | |
621 | } | |
622 | ||
623 | synaptics_mode_cmd(psmouse, priv->mode); | |
624 | } | |
625 | ||
626 | /***************************************************************************** | |
627 | * Synaptics pass-through PS/2 port support | |
628 | ****************************************************************************/ | |
f6c4442b | 629 | static int synaptics_pt_write(struct serio *serio, u8 c) |
1da177e4 LT |
630 | { |
631 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
212baf03 DT |
632 | u8 rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ |
633 | int error; | |
634 | ||
08be954b | 635 | error = ps2_sliced_command(&parent->ps2dev, c); |
212baf03 DT |
636 | if (error) |
637 | return error; | |
638 | ||
639 | error = ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE); | |
640 | if (error) | |
641 | return error; | |
1da177e4 | 642 | |
1da177e4 LT |
643 | return 0; |
644 | } | |
645 | ||
a8b3c0f5 DT |
646 | static int synaptics_pt_start(struct serio *serio) |
647 | { | |
648 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
649 | struct synaptics_data *priv = parent->private; | |
650 | ||
651 | serio_pause_rx(parent->ps2dev.serio); | |
652 | priv->pt_port = serio; | |
653 | serio_continue_rx(parent->ps2dev.serio); | |
654 | ||
655 | return 0; | |
656 | } | |
657 | ||
658 | static void synaptics_pt_stop(struct serio *serio) | |
659 | { | |
660 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
661 | struct synaptics_data *priv = parent->private; | |
662 | ||
663 | serio_pause_rx(parent->ps2dev.serio); | |
664 | priv->pt_port = NULL; | |
665 | serio_continue_rx(parent->ps2dev.serio); | |
666 | } | |
667 | ||
f6c4442b | 668 | static int synaptics_is_pt_packet(u8 *buf) |
1da177e4 LT |
669 | { |
670 | return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; | |
671 | } | |
672 | ||
f6c4442b | 673 | static void synaptics_pass_pt_packet(struct serio *ptport, u8 *packet) |
1da177e4 LT |
674 | { |
675 | struct psmouse *child = serio_get_drvdata(ptport); | |
676 | ||
677 | if (child && child->state == PSMOUSE_ACTIVATED) { | |
bf23cfc3 | 678 | serio_interrupt(ptport, packet[1], 0); |
7d12e780 DH |
679 | serio_interrupt(ptport, packet[4], 0); |
680 | serio_interrupt(ptport, packet[5], 0); | |
33fdfa97 | 681 | if (child->pktsize == 4) |
7d12e780 | 682 | serio_interrupt(ptport, packet[2], 0); |
cdd9dc19 | 683 | } else { |
7d12e780 | 684 | serio_interrupt(ptport, packet[1], 0); |
cdd9dc19 | 685 | } |
1da177e4 LT |
686 | } |
687 | ||
688 | static void synaptics_pt_activate(struct psmouse *psmouse) | |
689 | { | |
1da177e4 | 690 | struct synaptics_data *priv = psmouse->private; |
a8b3c0f5 | 691 | struct psmouse *child = serio_get_drvdata(priv->pt_port); |
1da177e4 LT |
692 | |
693 | /* adjust the touchpad to child's choice of protocol */ | |
694 | if (child) { | |
33fdfa97 | 695 | if (child->pktsize == 4) |
1da177e4 LT |
696 | priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; |
697 | else | |
698 | priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; | |
699 | ||
700 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
b5d21704 DT |
701 | psmouse_warn(psmouse, |
702 | "failed to switch guest protocol\n"); | |
1da177e4 LT |
703 | } |
704 | } | |
705 | ||
706 | static void synaptics_pt_create(struct psmouse *psmouse) | |
707 | { | |
708 | struct serio *serio; | |
709 | ||
b39787a9 | 710 | serio = kzalloc(sizeof(struct serio), GFP_KERNEL); |
1da177e4 | 711 | if (!serio) { |
b5d21704 DT |
712 | psmouse_err(psmouse, |
713 | "not enough memory for pass-through port\n"); | |
1da177e4 LT |
714 | return; |
715 | } | |
716 | ||
1da177e4 | 717 | serio->id.type = SERIO_PS_PSTHRU; |
a9f08ad7 WS |
718 | strscpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); |
719 | strscpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->phys)); | |
1da177e4 | 720 | serio->write = synaptics_pt_write; |
a8b3c0f5 DT |
721 | serio->start = synaptics_pt_start; |
722 | serio->stop = synaptics_pt_stop; | |
1da177e4 LT |
723 | serio->parent = psmouse->ps2dev.serio; |
724 | ||
725 | psmouse->pt_activate = synaptics_pt_activate; | |
726 | ||
b5d21704 DT |
727 | psmouse_info(psmouse, "serio: %s port at %s\n", |
728 | serio->name, psmouse->phys); | |
1da177e4 LT |
729 | serio_register_port(serio); |
730 | } | |
731 | ||
732 | /***************************************************************************** | |
733 | * Functions to interpret the absolute mode packets | |
734 | ****************************************************************************/ | |
735 | ||
f6c4442b | 736 | static void synaptics_parse_agm(const u8 buf[], |
a6ca40c1 DK |
737 | struct synaptics_data *priv, |
738 | struct synaptics_hw_state *hw) | |
7afdb842 DK |
739 | { |
740 | struct synaptics_hw_state *agm = &priv->agm; | |
a6ca40c1 DK |
741 | int agm_packet_type; |
742 | ||
743 | agm_packet_type = (buf[5] & 0x30) >> 4; | |
744 | switch (agm_packet_type) { | |
745 | case 1: | |
746 | /* Gesture packet: (x, y, z) half resolution */ | |
747 | agm->w = hw->w; | |
748 | agm->x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1; | |
749 | agm->y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1; | |
750 | agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1; | |
751 | break; | |
752 | ||
753 | case 2: | |
e9e8520f BT |
754 | /* AGM-CONTACT packet: we are only interested in the count */ |
755 | priv->agm_count = buf[1]; | |
a6ca40c1 DK |
756 | break; |
757 | ||
758 | default: | |
759 | break; | |
760 | } | |
7afdb842 DK |
761 | } |
762 | ||
f6c4442b | 763 | static void synaptics_parse_ext_buttons(const u8 buf[], |
dc5465dc DT |
764 | struct synaptics_data *priv, |
765 | struct synaptics_hw_state *hw) | |
766 | { | |
767 | unsigned int ext_bits = | |
6c53694f | 768 | (SYN_CAP_MULTI_BUTTON_NO(priv->info.ext_cap) + 1) >> 1; |
dc5465dc DT |
769 | unsigned int ext_mask = GENMASK(ext_bits - 1, 0); |
770 | ||
771 | hw->ext_buttons = buf[4] & ext_mask; | |
772 | hw->ext_buttons |= (buf[5] & ext_mask) << ext_bits; | |
773 | } | |
774 | ||
f6c4442b | 775 | static int synaptics_parse_hw_state(const u8 buf[], |
fec6e525 HR |
776 | struct synaptics_data *priv, |
777 | struct synaptics_hw_state *hw) | |
1da177e4 LT |
778 | { |
779 | memset(hw, 0, sizeof(struct synaptics_hw_state)); | |
780 | ||
6c53694f | 781 | if (SYN_MODEL_NEWABS(priv->info.model_id)) { |
1da177e4 LT |
782 | hw->w = (((buf[0] & 0x30) >> 2) | |
783 | ((buf[0] & 0x04) >> 1) | | |
784 | ((buf[3] & 0x04) >> 2)); | |
785 | ||
3f9db52d | 786 | if (synaptics_has_agm(priv) && hw->w == 2) { |
5715fc76 DT |
787 | synaptics_parse_agm(buf, priv, hw); |
788 | return 1; | |
789 | } | |
790 | ||
791 | hw->x = (((buf[3] & 0x10) << 8) | | |
792 | ((buf[1] & 0x0f) << 8) | | |
793 | buf[4]); | |
794 | hw->y = (((buf[3] & 0x20) << 7) | | |
795 | ((buf[1] & 0xf0) << 4) | | |
796 | buf[5]); | |
797 | hw->z = buf[2]; | |
798 | ||
1da177e4 LT |
799 | hw->left = (buf[0] & 0x01) ? 1 : 0; |
800 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
801 | ||
de4e374b | 802 | if (priv->is_forcepad) { |
5715fc76 DT |
803 | /* |
804 | * ForcePads, like Clickpads, use middle button | |
805 | * bits to report primary button clicks. | |
806 | * Unfortunately they report primary button not | |
807 | * only when user presses on the pad above certain | |
808 | * threshold, but also when there are more than one | |
809 | * finger on the touchpad, which interferes with | |
810 | * out multi-finger gestures. | |
811 | */ | |
812 | if (hw->z == 0) { | |
813 | /* No contacts */ | |
814 | priv->press = priv->report_press = false; | |
815 | } else if (hw->w >= 4 && ((buf[0] ^ buf[3]) & 0x01)) { | |
816 | /* | |
817 | * Single-finger touch with pressure above | |
818 | * the threshold. If pressure stays long | |
819 | * enough, we'll start reporting primary | |
820 | * button. We rely on the device continuing | |
821 | * sending data even if finger does not | |
822 | * move. | |
823 | */ | |
824 | if (!priv->press) { | |
825 | priv->press_start = jiffies; | |
826 | priv->press = true; | |
827 | } else if (time_after(jiffies, | |
828 | priv->press_start + | |
829 | msecs_to_jiffies(50))) { | |
830 | priv->report_press = true; | |
831 | } | |
832 | } else { | |
833 | priv->press = false; | |
834 | } | |
835 | ||
836 | hw->left = priv->report_press; | |
837 | ||
6c53694f | 838 | } else if (SYN_CAP_CLICKPAD(priv->info.ext_cap_0c)) { |
5f57d67d TI |
839 | /* |
840 | * Clickpad's button is transmitted as middle button, | |
841 | * however, since it is primary button, we will report | |
842 | * it as BTN_LEFT. | |
843 | */ | |
844 | hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
845 | ||
6c53694f | 846 | } else if (SYN_CAP_MIDDLE_BUTTON(priv->info.capabilities)) { |
1da177e4 LT |
847 | hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; |
848 | if (hw->w == 2) | |
f6c4442b | 849 | hw->scroll = (s8)buf[1]; |
1da177e4 LT |
850 | } |
851 | ||
6c53694f | 852 | if (SYN_CAP_FOUR_BUTTON(priv->info.capabilities)) { |
1da177e4 LT |
853 | hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; |
854 | hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; | |
855 | } | |
856 | ||
6c53694f | 857 | if (SYN_CAP_MULTI_BUTTON_NO(priv->info.ext_cap) > 0 && |
1da177e4 | 858 | ((buf[0] ^ buf[3]) & 0x02)) { |
dc5465dc | 859 | synaptics_parse_ext_buttons(buf, priv, hw); |
1da177e4 LT |
860 | } |
861 | } else { | |
862 | hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); | |
863 | hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); | |
864 | ||
865 | hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); | |
866 | hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); | |
867 | ||
868 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
869 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
870 | } | |
fec6e525 | 871 | |
824efd37 SF |
872 | /* |
873 | * Convert wrap-around values to negative. (X|Y)_MAX_POSITIVE | |
874 | * is used by some firmware to indicate a finger at the edge of | |
875 | * the touchpad whose precise position cannot be determined, so | |
876 | * convert these values to the maximum axis value. | |
877 | */ | |
c0394506 SF |
878 | if (hw->x > X_MAX_POSITIVE) |
879 | hw->x -= 1 << ABS_POS_BITS; | |
824efd37 SF |
880 | else if (hw->x == X_MAX_POSITIVE) |
881 | hw->x = XMAX; | |
882 | ||
c0394506 SF |
883 | if (hw->y > Y_MAX_POSITIVE) |
884 | hw->y -= 1 << ABS_POS_BITS; | |
824efd37 SF |
885 | else if (hw->y == Y_MAX_POSITIVE) |
886 | hw->y = YMAX; | |
c0394506 | 887 | |
fec6e525 HR |
888 | return 0; |
889 | } | |
890 | ||
bea9f0ff DK |
891 | static void synaptics_report_semi_mt_slot(struct input_dev *dev, int slot, |
892 | bool active, int x, int y) | |
fec6e525 HR |
893 | { |
894 | input_mt_slot(dev, slot); | |
895 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, active); | |
896 | if (active) { | |
897 | input_report_abs(dev, ABS_MT_POSITION_X, x); | |
6de58dd6 | 898 | input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(y)); |
fec6e525 HR |
899 | } |
900 | } | |
901 | ||
902 | static void synaptics_report_semi_mt_data(struct input_dev *dev, | |
903 | const struct synaptics_hw_state *a, | |
904 | const struct synaptics_hw_state *b, | |
905 | int num_fingers) | |
906 | { | |
907 | if (num_fingers >= 2) { | |
bea9f0ff DK |
908 | synaptics_report_semi_mt_slot(dev, 0, true, min(a->x, b->x), |
909 | min(a->y, b->y)); | |
910 | synaptics_report_semi_mt_slot(dev, 1, true, max(a->x, b->x), | |
911 | max(a->y, b->y)); | |
fec6e525 | 912 | } else if (num_fingers == 1) { |
bea9f0ff DK |
913 | synaptics_report_semi_mt_slot(dev, 0, true, a->x, a->y); |
914 | synaptics_report_semi_mt_slot(dev, 1, false, 0, 0); | |
fec6e525 | 915 | } else { |
bea9f0ff DK |
916 | synaptics_report_semi_mt_slot(dev, 0, false, 0, 0); |
917 | synaptics_report_semi_mt_slot(dev, 1, false, 0, 0); | |
fec6e525 | 918 | } |
1da177e4 LT |
919 | } |
920 | ||
ebc80840 BT |
921 | static void synaptics_report_ext_buttons(struct psmouse *psmouse, |
922 | const struct synaptics_hw_state *hw) | |
3cdfee9e DK |
923 | { |
924 | struct input_dev *dev = psmouse->dev; | |
925 | struct synaptics_data *priv = psmouse->private; | |
6c53694f | 926 | int ext_bits = (SYN_CAP_MULTI_BUTTON_NO(priv->info.ext_cap) + 1) >> 1; |
3cdfee9e DK |
927 | int i; |
928 | ||
6c53694f | 929 | if (!SYN_CAP_MULTI_BUTTON_NO(priv->info.ext_cap)) |
ebc80840 BT |
930 | return; |
931 | ||
82be788c | 932 | /* Bug in FW 8.1 & 8.2, buttons are reported only when ExtBit is 1 */ |
6c53694f DT |
933 | if ((SYN_ID_FULL(priv->info.identity) == 0x801 || |
934 | SYN_ID_FULL(priv->info.identity) == 0x802) && | |
ebc80840 BT |
935 | !((psmouse->packet[0] ^ psmouse->packet[3]) & 0x02)) |
936 | return; | |
937 | ||
6c53694f | 938 | if (!SYN_CAP_EXT_BUTTONS_STICK(priv->info.ext_cap_10)) { |
cdd9dc19 BT |
939 | for (i = 0; i < ext_bits; i++) { |
940 | input_report_key(dev, BTN_0 + 2 * i, | |
991d29fe | 941 | hw->ext_buttons & BIT(i)); |
cdd9dc19 | 942 | input_report_key(dev, BTN_1 + 2 * i, |
991d29fe | 943 | hw->ext_buttons & BIT(i + ext_bits)); |
cdd9dc19 BT |
944 | } |
945 | return; | |
ebc80840 | 946 | } |
cdd9dc19 BT |
947 | |
948 | /* | |
949 | * This generation of touchpads has the trackstick buttons | |
950 | * physically wired to the touchpad. Re-route them through | |
951 | * the pass-through interface. | |
952 | */ | |
bf23cfc3 DT |
953 | if (priv->pt_port) { |
954 | u8 pt_buttons; | |
cdd9dc19 | 955 | |
bf23cfc3 | 956 | /* The trackstick expects at most 3 buttons */ |
996b9eed DT |
957 | pt_buttons = SYN_EXT_BUTTON_STICK_L(hw->ext_buttons) | |
958 | SYN_EXT_BUTTON_STICK_R(hw->ext_buttons) << 1 | | |
959 | SYN_EXT_BUTTON_STICK_M(hw->ext_buttons) << 2; | |
cdd9dc19 | 960 | |
bf23cfc3 DT |
961 | serio_interrupt(priv->pt_port, |
962 | PSMOUSE_OOB_EXTRA_BTNS, SERIO_OOB_DATA); | |
963 | serio_interrupt(priv->pt_port, pt_buttons, SERIO_OOB_DATA); | |
964 | } | |
ebc80840 BT |
965 | } |
966 | ||
3cdfee9e DK |
967 | static void synaptics_report_buttons(struct psmouse *psmouse, |
968 | const struct synaptics_hw_state *hw) | |
969 | { | |
970 | struct input_dev *dev = psmouse->dev; | |
971 | struct synaptics_data *priv = psmouse->private; | |
3cdfee9e DK |
972 | |
973 | input_report_key(dev, BTN_LEFT, hw->left); | |
974 | input_report_key(dev, BTN_RIGHT, hw->right); | |
975 | ||
6c53694f | 976 | if (SYN_CAP_MIDDLE_BUTTON(priv->info.capabilities)) |
3cdfee9e DK |
977 | input_report_key(dev, BTN_MIDDLE, hw->middle); |
978 | ||
6c53694f | 979 | if (SYN_CAP_FOUR_BUTTON(priv->info.capabilities)) { |
3cdfee9e DK |
980 | input_report_key(dev, BTN_FORWARD, hw->up); |
981 | input_report_key(dev, BTN_BACK, hw->down); | |
982 | } | |
983 | ||
ebc80840 | 984 | synaptics_report_ext_buttons(psmouse, hw); |
3cdfee9e DK |
985 | } |
986 | ||
3cdfee9e | 987 | static void synaptics_report_mt_data(struct psmouse *psmouse, |
e9e8520f BT |
988 | const struct synaptics_hw_state *sgm, |
989 | int num_fingers) | |
3cdfee9e DK |
990 | { |
991 | struct input_dev *dev = psmouse->dev; | |
992 | struct synaptics_data *priv = psmouse->private; | |
e9e8520f BT |
993 | const struct synaptics_hw_state *hw[2] = { sgm, &priv->agm }; |
994 | struct input_mt_pos pos[2]; | |
995 | int slot[2], nsemi, i; | |
3cdfee9e | 996 | |
e9e8520f | 997 | nsemi = clamp_val(num_fingers, 0, 2); |
4dc772d2 | 998 | |
e9e8520f BT |
999 | for (i = 0; i < nsemi; i++) { |
1000 | pos[i].x = hw[i]->x; | |
1001 | pos[i].y = synaptics_invert_y(hw[i]->y); | |
3cdfee9e DK |
1002 | } |
1003 | ||
6c53694f | 1004 | input_mt_assign_slots(dev, slot, pos, nsemi, DMAX * priv->info.x_res); |
e9e8520f BT |
1005 | |
1006 | for (i = 0; i < nsemi; i++) { | |
1007 | input_mt_slot(dev, slot[i]); | |
1008 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, true); | |
1009 | input_report_abs(dev, ABS_MT_POSITION_X, pos[i].x); | |
1010 | input_report_abs(dev, ABS_MT_POSITION_Y, pos[i].y); | |
1011 | input_report_abs(dev, ABS_MT_PRESSURE, hw[i]->z); | |
1012 | } | |
1013 | ||
1014 | input_mt_drop_unused(dev); | |
1015 | ||
3cdfee9e DK |
1016 | /* Don't use active slot count to generate BTN_TOOL events. */ |
1017 | input_mt_report_pointer_emulation(dev, false); | |
1018 | ||
1019 | /* Send the number of fingers reported by touchpad itself. */ | |
e9e8520f | 1020 | input_mt_report_finger_count(dev, num_fingers); |
3cdfee9e DK |
1021 | |
1022 | synaptics_report_buttons(psmouse, sgm); | |
1023 | ||
1024 | input_sync(dev); | |
1025 | } | |
1026 | ||
1027 | static void synaptics_image_sensor_process(struct psmouse *psmouse, | |
1028 | struct synaptics_hw_state *sgm) | |
1029 | { | |
4dc772d2 | 1030 | struct synaptics_data *priv = psmouse->private; |
e9e8520f | 1031 | int num_fingers; |
4dc772d2 DK |
1032 | |
1033 | /* | |
1034 | * Update mt_state using the new finger count and current mt_state. | |
1035 | */ | |
3cdfee9e | 1036 | if (sgm->z == 0) |
e9e8520f | 1037 | num_fingers = 0; |
3cdfee9e | 1038 | else if (sgm->w >= 4) |
e9e8520f | 1039 | num_fingers = 1; |
3cdfee9e | 1040 | else if (sgm->w == 0) |
e9e8520f BT |
1041 | num_fingers = 2; |
1042 | else if (sgm->w == 1) | |
1043 | num_fingers = priv->agm_count ? priv->agm_count : 3; | |
6b4b49fe | 1044 | else |
e9e8520f | 1045 | num_fingers = 4; |
3cdfee9e DK |
1046 | |
1047 | /* Send resulting input events to user space */ | |
e9e8520f | 1048 | synaptics_report_mt_data(psmouse, sgm, num_fingers); |
3cdfee9e DK |
1049 | } |
1050 | ||
3f9db52d AM |
1051 | static bool synaptics_has_multifinger(struct synaptics_data *priv) |
1052 | { | |
1053 | if (SYN_CAP_MULTIFINGER(priv->info.capabilities)) | |
1054 | return true; | |
1055 | ||
1056 | /* Advanced gesture mode also sends multi finger data */ | |
1057 | return synaptics_has_agm(priv); | |
1058 | } | |
1059 | ||
1da177e4 LT |
1060 | /* |
1061 | * called for each full received packet from the touchpad | |
1062 | */ | |
1063 | static void synaptics_process_packet(struct psmouse *psmouse) | |
1064 | { | |
2e5b636b | 1065 | struct input_dev *dev = psmouse->dev; |
1da177e4 | 1066 | struct synaptics_data *priv = psmouse->private; |
6c53694f | 1067 | struct synaptics_device_info *info = &priv->info; |
1da177e4 LT |
1068 | struct synaptics_hw_state hw; |
1069 | int num_fingers; | |
1070 | int finger_width; | |
1da177e4 | 1071 | |
fec6e525 HR |
1072 | if (synaptics_parse_hw_state(psmouse->packet, priv, &hw)) |
1073 | return; | |
1da177e4 | 1074 | |
6c53694f | 1075 | if (SYN_CAP_IMAGE_SENSOR(info->ext_cap_0c)) { |
3cdfee9e DK |
1076 | synaptics_image_sensor_process(psmouse, &hw); |
1077 | return; | |
1078 | } | |
1079 | ||
1da177e4 LT |
1080 | if (hw.scroll) { |
1081 | priv->scroll += hw.scroll; | |
1082 | ||
1083 | while (priv->scroll >= 4) { | |
1084 | input_report_key(dev, BTN_BACK, !hw.down); | |
1085 | input_sync(dev); | |
1086 | input_report_key(dev, BTN_BACK, hw.down); | |
1087 | input_sync(dev); | |
1088 | priv->scroll -= 4; | |
1089 | } | |
1090 | while (priv->scroll <= -4) { | |
1091 | input_report_key(dev, BTN_FORWARD, !hw.up); | |
1092 | input_sync(dev); | |
1093 | input_report_key(dev, BTN_FORWARD, hw.up); | |
1094 | input_sync(dev); | |
1095 | priv->scroll += 4; | |
1096 | } | |
1097 | return; | |
1098 | } | |
1099 | ||
4f56ce92 | 1100 | if (hw.z > 0 && hw.x > 1) { |
1da177e4 LT |
1101 | num_fingers = 1; |
1102 | finger_width = 5; | |
6c53694f | 1103 | if (SYN_CAP_EXTENDED(info->capabilities)) { |
1da177e4 LT |
1104 | switch (hw.w) { |
1105 | case 0 ... 1: | |
3f9db52d | 1106 | if (synaptics_has_multifinger(priv)) |
1da177e4 LT |
1107 | num_fingers = hw.w + 2; |
1108 | break; | |
1109 | case 2: | |
a1ba9c29 LJ |
1110 | /* |
1111 | * SYN_MODEL_PEN(info->model_id): even if | |
1112 | * the device supports pen, we treat it as | |
1113 | * a single finger. | |
1114 | */ | |
1da177e4 LT |
1115 | break; |
1116 | case 4 ... 15: | |
6c53694f | 1117 | if (SYN_CAP_PALMDETECT(info->capabilities)) |
1da177e4 LT |
1118 | finger_width = hw.w; |
1119 | break; | |
1120 | } | |
1121 | } | |
1122 | } else { | |
1123 | num_fingers = 0; | |
1124 | finger_width = 0; | |
1125 | } | |
1126 | ||
e08d9afa | 1127 | if (cr48_profile_sensor) { |
aa104b1a | 1128 | synaptics_report_mt_data(psmouse, &hw, num_fingers); |
e08d9afa HR |
1129 | return; |
1130 | } | |
1131 | ||
6c53694f | 1132 | if (SYN_CAP_ADV_GESTURE(info->ext_cap_0c)) |
7afdb842 DK |
1133 | synaptics_report_semi_mt_data(dev, &hw, &priv->agm, |
1134 | num_fingers); | |
fec6e525 | 1135 | |
1da177e4 LT |
1136 | /* Post events |
1137 | * BTN_TOUCH has to be first as mousedev relies on it when doing | |
1138 | * absolute -> relative conversion | |
1139 | */ | |
1140 | if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); | |
1141 | if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); | |
1142 | ||
4f56ce92 | 1143 | if (num_fingers > 0) { |
1da177e4 | 1144 | input_report_abs(dev, ABS_X, hw.x); |
6de58dd6 | 1145 | input_report_abs(dev, ABS_Y, synaptics_invert_y(hw.y)); |
1da177e4 LT |
1146 | } |
1147 | input_report_abs(dev, ABS_PRESSURE, hw.z); | |
1148 | ||
6c53694f | 1149 | if (SYN_CAP_PALMDETECT(info->capabilities)) |
2a8e7710 CB |
1150 | input_report_abs(dev, ABS_TOOL_WIDTH, finger_width); |
1151 | ||
1da177e4 | 1152 | input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1); |
3f9db52d | 1153 | if (synaptics_has_multifinger(priv)) { |
e42b6646 PH |
1154 | input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2); |
1155 | input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3); | |
1156 | } | |
1157 | ||
3cdfee9e | 1158 | synaptics_report_buttons(psmouse, &hw); |
1da177e4 LT |
1159 | |
1160 | input_sync(dev); | |
1161 | } | |
1162 | ||
f6c4442b DT |
1163 | static bool synaptics_validate_byte(struct psmouse *psmouse, |
1164 | int idx, enum synaptics_pkt_type pkt_type) | |
1da177e4 | 1165 | { |
f6c4442b DT |
1166 | static const u8 newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 }; |
1167 | static const u8 newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 }; | |
1168 | static const u8 newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 }; | |
1169 | static const u8 oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 }; | |
1170 | static const u8 oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 }; | |
1171 | const u8 *packet = psmouse->packet; | |
1da177e4 LT |
1172 | |
1173 | if (idx < 0 || idx > 4) | |
f6c4442b | 1174 | return false; |
1da177e4 LT |
1175 | |
1176 | switch (pkt_type) { | |
1da177e4 | 1177 | |
a62f0d27 DT |
1178 | case SYN_NEWABS: |
1179 | case SYN_NEWABS_RELAXED: | |
1180 | return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; | |
1da177e4 | 1181 | |
a62f0d27 DT |
1182 | case SYN_NEWABS_STRICT: |
1183 | return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; | |
1da177e4 | 1184 | |
a62f0d27 DT |
1185 | case SYN_OLDABS: |
1186 | return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; | |
1187 | ||
1188 | default: | |
b5d21704 | 1189 | psmouse_err(psmouse, "unknown packet type %d\n", pkt_type); |
f6c4442b | 1190 | return false; |
1da177e4 LT |
1191 | } |
1192 | } | |
1193 | ||
f6c4442b DT |
1194 | static enum synaptics_pkt_type |
1195 | synaptics_detect_pkt_type(struct psmouse *psmouse) | |
1da177e4 LT |
1196 | { |
1197 | int i; | |
1198 | ||
f6c4442b | 1199 | for (i = 0; i < 5; i++) { |
b5d21704 DT |
1200 | if (!synaptics_validate_byte(psmouse, i, SYN_NEWABS_STRICT)) { |
1201 | psmouse_info(psmouse, "using relaxed packet validation\n"); | |
1da177e4 LT |
1202 | return SYN_NEWABS_RELAXED; |
1203 | } | |
f6c4442b | 1204 | } |
1da177e4 LT |
1205 | |
1206 | return SYN_NEWABS_STRICT; | |
1207 | } | |
1208 | ||
7d12e780 | 1209 | static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse) |
1da177e4 | 1210 | { |
1da177e4 LT |
1211 | struct synaptics_data *priv = psmouse->private; |
1212 | ||
1da177e4 LT |
1213 | if (psmouse->pktcnt >= 6) { /* Full packet received */ |
1214 | if (unlikely(priv->pkt_type == SYN_NEWABS)) | |
1215 | priv->pkt_type = synaptics_detect_pkt_type(psmouse); | |
1216 | ||
6c53694f | 1217 | if (SYN_CAP_PASS_THROUGH(priv->info.capabilities) && |
a8b3c0f5 DT |
1218 | synaptics_is_pt_packet(psmouse->packet)) { |
1219 | if (priv->pt_port) | |
bf23cfc3 | 1220 | synaptics_pass_pt_packet(priv->pt_port, |
cdd9dc19 | 1221 | psmouse->packet); |
1da177e4 LT |
1222 | } else |
1223 | synaptics_process_packet(psmouse); | |
1224 | ||
1225 | return PSMOUSE_FULL_PACKET; | |
1226 | } | |
1227 | ||
b5d21704 | 1228 | return synaptics_validate_byte(psmouse, psmouse->pktcnt - 1, priv->pkt_type) ? |
1da177e4 LT |
1229 | PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; |
1230 | } | |
1231 | ||
1232 | /***************************************************************************** | |
1233 | * Driver initialization/cleanup functions | |
1234 | ****************************************************************************/ | |
85615476 | 1235 | static void set_abs_position_params(struct input_dev *dev, |
6c53694f DT |
1236 | struct synaptics_device_info *info, |
1237 | int x_code, int y_code) | |
1da177e4 | 1238 | { |
6c53694f DT |
1239 | int x_min = info->x_min ?: XMIN_NOMINAL; |
1240 | int x_max = info->x_max ?: XMAX_NOMINAL; | |
1241 | int y_min = info->y_min ?: YMIN_NOMINAL; | |
1242 | int y_max = info->y_max ?: YMAX_NOMINAL; | |
1243 | int fuzz = SYN_CAP_REDUCED_FILTERING(info->ext_cap_0c) ? | |
a9f0b79e | 1244 | SYN_REDUCED_FILTER_FUZZ : 0; |
1da177e4 | 1245 | |
85615476 DK |
1246 | input_set_abs_params(dev, x_code, x_min, x_max, fuzz, 0); |
1247 | input_set_abs_params(dev, y_code, y_min, y_max, fuzz, 0); | |
6c53694f DT |
1248 | input_abs_set_res(dev, x_code, info->x_res); |
1249 | input_abs_set_res(dev, y_code, info->y_res); | |
85615476 DK |
1250 | } |
1251 | ||
cdc2466d DT |
1252 | static int set_input_params(struct psmouse *psmouse, |
1253 | struct synaptics_data *priv) | |
85615476 | 1254 | { |
43e19888 | 1255 | struct input_dev *dev = psmouse->dev; |
6c53694f | 1256 | struct synaptics_device_info *info = &priv->info; |
85615476 | 1257 | int i; |
cdc2466d | 1258 | int error; |
85615476 | 1259 | |
29aa6194 DT |
1260 | /* Reset default psmouse capabilities */ |
1261 | __clear_bit(EV_REL, dev->evbit); | |
1262 | bitmap_zero(dev->relbit, REL_CNT); | |
1263 | bitmap_zero(dev->keybit, KEY_CNT); | |
1264 | ||
7968a5dd | 1265 | /* Things that apply to both modes */ |
c14890a8 HR |
1266 | __set_bit(INPUT_PROP_POINTER, dev->propbit); |
1267 | ||
29aa6194 DT |
1268 | input_set_capability(dev, EV_KEY, BTN_LEFT); |
1269 | ||
1270 | /* Clickpads report only left button */ | |
1271 | if (!SYN_CAP_CLICKPAD(info->ext_cap_0c)) { | |
1272 | input_set_capability(dev, EV_KEY, BTN_RIGHT); | |
1273 | if (SYN_CAP_MIDDLE_BUTTON(info->capabilities)) | |
1274 | input_set_capability(dev, EV_KEY, BTN_MIDDLE); | |
1275 | } | |
7968a5dd DD |
1276 | |
1277 | if (!priv->absolute_mode) { | |
1278 | /* Relative mode */ | |
29aa6194 DT |
1279 | input_set_capability(dev, EV_REL, REL_X); |
1280 | input_set_capability(dev, EV_REL, REL_Y); | |
cdc2466d | 1281 | return 0; |
7968a5dd DD |
1282 | } |
1283 | ||
1284 | /* Absolute mode */ | |
6c53694f | 1285 | set_abs_position_params(dev, &priv->info, ABS_X, ABS_Y); |
1da177e4 | 1286 | input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); |
2a8e7710 | 1287 | |
e08d9afa HR |
1288 | if (cr48_profile_sensor) |
1289 | input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0); | |
1290 | ||
6c53694f DT |
1291 | if (SYN_CAP_IMAGE_SENSOR(info->ext_cap_0c)) { |
1292 | set_abs_position_params(dev, info, | |
1293 | ABS_MT_POSITION_X, ABS_MT_POSITION_Y); | |
3cdfee9e DK |
1294 | /* Image sensors can report per-contact pressure */ |
1295 | input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0); | |
cdc2466d DT |
1296 | |
1297 | error = input_mt_init_slots(dev, 2, | |
1298 | INPUT_MT_POINTER | INPUT_MT_TRACK); | |
1299 | if (error) | |
1300 | return error; | |
6b4b49fe DK |
1301 | |
1302 | /* Image sensors can signal 4 and 5 finger clicks */ | |
29aa6194 DT |
1303 | input_set_capability(dev, EV_KEY, BTN_TOOL_QUADTAP); |
1304 | input_set_capability(dev, EV_KEY, BTN_TOOL_QUINTTAP); | |
6c53694f DT |
1305 | } else if (SYN_CAP_ADV_GESTURE(info->ext_cap_0c)) { |
1306 | set_abs_position_params(dev, info, | |
1307 | ABS_MT_POSITION_X, ABS_MT_POSITION_Y); | |
e08d9afa HR |
1308 | /* |
1309 | * Profile sensor in CR-48 tracks contacts reasonably well, | |
1310 | * other non-image sensors with AGM use semi-mt. | |
1311 | */ | |
cdc2466d DT |
1312 | error = input_mt_init_slots(dev, 2, |
1313 | INPUT_MT_POINTER | | |
1314 | (cr48_profile_sensor ? | |
1315 | INPUT_MT_TRACK : | |
1316 | INPUT_MT_SEMI_MT)); | |
1317 | if (error) | |
1318 | return error; | |
19eb4ed1 PH |
1319 | |
1320 | /* | |
1321 | * For semi-mt devices we send ABS_X/Y ourselves instead of | |
1322 | * input_mt_report_pointer_emulation. But | |
1323 | * input_mt_init_slots() resets the fuzz to 0, leading to a | |
1324 | * filtered ABS_MT_POSITION_X but an unfiltered ABS_X | |
1325 | * position. Let's re-initialize ABS_X/Y here. | |
1326 | */ | |
1327 | if (!cr48_profile_sensor) | |
1328 | set_abs_position_params(dev, &priv->info, ABS_X, ABS_Y); | |
fec6e525 HR |
1329 | } |
1330 | ||
6c53694f | 1331 | if (SYN_CAP_PALMDETECT(info->capabilities)) |
58fb0218 | 1332 | input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0); |
1da177e4 | 1333 | |
29aa6194 DT |
1334 | input_set_capability(dev, EV_KEY, BTN_TOUCH); |
1335 | input_set_capability(dev, EV_KEY, BTN_TOOL_FINGER); | |
1da177e4 | 1336 | |
3f9db52d | 1337 | if (synaptics_has_multifinger(priv)) { |
29aa6194 DT |
1338 | input_set_capability(dev, EV_KEY, BTN_TOOL_DOUBLETAP); |
1339 | input_set_capability(dev, EV_KEY, BTN_TOOL_TRIPLETAP); | |
e42b6646 PH |
1340 | } |
1341 | ||
6c53694f DT |
1342 | if (SYN_CAP_FOUR_BUTTON(info->capabilities) || |
1343 | SYN_CAP_MIDDLE_BUTTON(info->capabilities)) { | |
29aa6194 DT |
1344 | input_set_capability(dev, EV_KEY, BTN_FORWARD); |
1345 | input_set_capability(dev, EV_KEY, BTN_BACK); | |
1da177e4 LT |
1346 | } |
1347 | ||
6c53694f DT |
1348 | if (!SYN_CAP_EXT_BUTTONS_STICK(info->ext_cap_10)) |
1349 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(info->ext_cap); i++) | |
29aa6194 | 1350 | input_set_capability(dev, EV_KEY, BTN_0 + i); |
ec20a022 | 1351 | |
6c53694f | 1352 | if (SYN_CAP_CLICKPAD(info->ext_cap_0c)) { |
c14890a8 | 1353 | __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit); |
3adde1f5 | 1354 | if (psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids) && |
6c53694f | 1355 | !SYN_CAP_EXT_BUTTONS_STICK(info->ext_cap_10)) |
e2f61102 | 1356 | __set_bit(INPUT_PROP_TOPBUTTONPAD, dev->propbit); |
5f57d67d | 1357 | } |
cdc2466d DT |
1358 | |
1359 | return 0; | |
1da177e4 LT |
1360 | } |
1361 | ||
7968a5dd DD |
1362 | static ssize_t synaptics_show_disable_gesture(struct psmouse *psmouse, |
1363 | void *data, char *buf) | |
1364 | { | |
1365 | struct synaptics_data *priv = psmouse->private; | |
1366 | ||
1367 | return sprintf(buf, "%c\n", priv->disable_gesture ? '1' : '0'); | |
1368 | } | |
1369 | ||
1370 | static ssize_t synaptics_set_disable_gesture(struct psmouse *psmouse, | |
1371 | void *data, const char *buf, | |
1372 | size_t len) | |
1373 | { | |
1374 | struct synaptics_data *priv = psmouse->private; | |
1375 | unsigned int value; | |
1376 | int err; | |
1377 | ||
1378 | err = kstrtouint(buf, 10, &value); | |
1379 | if (err) | |
1380 | return err; | |
1381 | ||
1382 | if (value > 1) | |
1383 | return -EINVAL; | |
1384 | ||
1385 | if (value == priv->disable_gesture) | |
1386 | return len; | |
1387 | ||
1388 | priv->disable_gesture = value; | |
1389 | if (value) | |
1390 | priv->mode |= SYN_BIT_DISABLE_GESTURE; | |
1391 | else | |
1392 | priv->mode &= ~SYN_BIT_DISABLE_GESTURE; | |
1393 | ||
1394 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
1395 | return -EIO; | |
1396 | ||
1397 | return len; | |
1398 | } | |
1399 | ||
1400 | PSMOUSE_DEFINE_ATTR(disable_gesture, S_IWUSR | S_IRUGO, NULL, | |
1401 | synaptics_show_disable_gesture, | |
1402 | synaptics_set_disable_gesture); | |
1403 | ||
1da177e4 LT |
1404 | static void synaptics_disconnect(struct psmouse *psmouse) |
1405 | { | |
7968a5dd DD |
1406 | struct synaptics_data *priv = psmouse->private; |
1407 | ||
e839ffab BT |
1408 | /* |
1409 | * We might have left a breadcrumb when trying to | |
1410 | * set up SMbus companion. | |
1411 | */ | |
1412 | psmouse_smbus_cleanup(psmouse); | |
1413 | ||
6c53694f DT |
1414 | if (!priv->absolute_mode && |
1415 | SYN_ID_DISGEST_SUPPORTED(priv->info.identity)) | |
7968a5dd DD |
1416 | device_remove_file(&psmouse->ps2dev.serio->dev, |
1417 | &psmouse_attr_disable_gesture.dattr); | |
1418 | ||
1da177e4 | 1419 | synaptics_reset(psmouse); |
7968a5dd | 1420 | kfree(priv); |
1da177e4 LT |
1421 | psmouse->private = NULL; |
1422 | } | |
1423 | ||
1424 | static int synaptics_reconnect(struct psmouse *psmouse) | |
1425 | { | |
1426 | struct synaptics_data *priv = psmouse->private; | |
6c53694f | 1427 | struct synaptics_device_info info; |
f6c4442b | 1428 | u8 param[2]; |
c63fe0a4 APF |
1429 | int retry = 0; |
1430 | int error; | |
1da177e4 | 1431 | |
c63fe0a4 APF |
1432 | do { |
1433 | psmouse_reset(psmouse); | |
8521478f DT |
1434 | if (retry) { |
1435 | /* | |
1436 | * On some boxes, right after resuming, the touchpad | |
1437 | * needs some time to finish initializing (I assume | |
1438 | * it needs time to calibrate) and start responding | |
1439 | * to Synaptics-specific queries, so let's wait a | |
1440 | * bit. | |
1441 | */ | |
1442 | ssleep(1); | |
1443 | } | |
eeb06558 | 1444 | ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETID); |
c63fe0a4 APF |
1445 | error = synaptics_detect(psmouse, 0); |
1446 | } while (error && ++retry < 3); | |
4d368456 | 1447 | |
c63fe0a4 | 1448 | if (error) |
212baf03 | 1449 | return error; |
1da177e4 | 1450 | |
c63fe0a4 | 1451 | if (retry > 1) |
b5d21704 | 1452 | psmouse_dbg(psmouse, "reconnected after %d tries\n", retry); |
c63fe0a4 | 1453 | |
212baf03 DT |
1454 | error = synaptics_query_hardware(psmouse, &info); |
1455 | if (error) { | |
b5d21704 | 1456 | psmouse_err(psmouse, "Unable to query device.\n"); |
212baf03 | 1457 | return error; |
1da177e4 LT |
1458 | } |
1459 | ||
212baf03 DT |
1460 | error = synaptics_set_mode(psmouse); |
1461 | if (error) { | |
b5d21704 | 1462 | psmouse_err(psmouse, "Unable to initialize device.\n"); |
212baf03 | 1463 | return error; |
1da177e4 LT |
1464 | } |
1465 | ||
6c53694f DT |
1466 | if (info.identity != priv->info.identity || |
1467 | info.model_id != priv->info.model_id || | |
1468 | info.capabilities != priv->info.capabilities || | |
1469 | info.ext_cap != priv->info.ext_cap) { | |
b5d21704 | 1470 | psmouse_err(psmouse, |
6c53694f DT |
1471 | "hardware appears to be different: id(%u-%u), model(%u-%u), caps(%x-%x), ext(%x-%x).\n", |
1472 | priv->info.identity, info.identity, | |
1473 | priv->info.model_id, info.model_id, | |
1474 | priv->info.capabilities, info.capabilities, | |
1475 | priv->info.ext_cap, info.ext_cap); | |
212baf03 | 1476 | return -ENXIO; |
baddf589 APF |
1477 | } |
1478 | ||
1da177e4 LT |
1479 | return 0; |
1480 | } | |
1481 | ||
7705d548 DT |
1482 | static bool impaired_toshiba_kbc; |
1483 | ||
c963156c | 1484 | static const struct dmi_system_id toshiba_dmi_table[] __initconst = { |
7705d548 | 1485 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) |
1da177e4 | 1486 | { |
9961e259 | 1487 | /* Toshiba Satellite */ |
1da177e4 LT |
1488 | .matches = { |
1489 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c | 1490 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), |
1da177e4 LT |
1491 | }, |
1492 | }, | |
9ba5eaaf | 1493 | { |
9961e259 | 1494 | /* Toshiba Dynabook */ |
9ba5eaaf SH |
1495 | .matches = { |
1496 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c RT |
1497 | DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"), |
1498 | }, | |
1499 | }, | |
1500 | { | |
9961e259 | 1501 | /* Toshiba Portege M300 */ |
53a2670c RT |
1502 | .matches = { |
1503 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1504 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), | |
9ba5eaaf | 1505 | }, |
5f5eeff4 DT |
1506 | |
1507 | }, | |
1508 | { | |
9961e259 | 1509 | /* Toshiba Portege M300 */ |
5f5eeff4 DT |
1510 | .matches = { |
1511 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1512 | DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"), | |
1513 | DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"), | |
1514 | }, | |
1515 | ||
9ba5eaaf | 1516 | }, |
1da177e4 | 1517 | #endif |
70874867 | 1518 | { } |
7705d548 DT |
1519 | }; |
1520 | ||
ef8313bb AS |
1521 | static bool broken_olpc_ec; |
1522 | ||
c963156c | 1523 | static const struct dmi_system_id olpc_dmi_table[] __initconst = { |
ef8313bb AS |
1524 | #if defined(CONFIG_DMI) && defined(CONFIG_OLPC) |
1525 | { | |
1526 | /* OLPC XO-1 or XO-1.5 */ | |
1527 | .matches = { | |
1528 | DMI_MATCH(DMI_SYS_VENDOR, "OLPC"), | |
1529 | DMI_MATCH(DMI_PRODUCT_NAME, "XO"), | |
1530 | }, | |
1531 | }, | |
ef8313bb | 1532 | #endif |
70874867 | 1533 | { } |
ef8313bb AS |
1534 | }; |
1535 | ||
e08d9afa HR |
1536 | static const struct dmi_system_id __initconst cr48_dmi_table[] = { |
1537 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) | |
1538 | { | |
1539 | /* Cr-48 Chromebook (Codename Mario) */ | |
1540 | .matches = { | |
1541 | DMI_MATCH(DMI_SYS_VENDOR, "IEC"), | |
1542 | DMI_MATCH(DMI_PRODUCT_NAME, "Mario"), | |
1543 | }, | |
1544 | }, | |
1545 | #endif | |
1546 | { } | |
1547 | }; | |
1548 | ||
7705d548 DT |
1549 | void __init synaptics_module_init(void) |
1550 | { | |
1551 | impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table); | |
ef8313bb | 1552 | broken_olpc_ec = dmi_check_system(olpc_dmi_table); |
e08d9afa | 1553 | cr48_profile_sensor = dmi_check_system(cr48_dmi_table); |
7705d548 | 1554 | } |
1da177e4 | 1555 | |
e839ffab BT |
1556 | static int synaptics_init_ps2(struct psmouse *psmouse, |
1557 | struct synaptics_device_info *info, | |
1558 | bool absolute_mode) | |
1da177e4 LT |
1559 | { |
1560 | struct synaptics_data *priv; | |
e839ffab | 1561 | int err; |
1da177e4 | 1562 | |
e839ffab | 1563 | synaptics_apply_quirks(psmouse, info); |
ef8313bb | 1564 | |
b39787a9 | 1565 | psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL); |
1da177e4 | 1566 | if (!priv) |
6792cbbb | 1567 | return -ENOMEM; |
1da177e4 | 1568 | |
e839ffab | 1569 | priv->info = *info; |
7968a5dd | 1570 | priv->absolute_mode = absolute_mode; |
6c53694f | 1571 | if (SYN_ID_DISGEST_SUPPORTED(info->identity)) |
7968a5dd | 1572 | priv->disable_gesture = true; |
1da177e4 | 1573 | |
de4e374b DT |
1574 | /* |
1575 | * Unfortunately ForcePad capability is not exported over PS/2, | |
1576 | * so we have to resort to checking PNP IDs. | |
1577 | */ | |
1578 | priv->is_forcepad = psmouse_matches_pnp_id(psmouse, forcepad_pnp_ids); | |
1579 | ||
e839ffab BT |
1580 | err = synaptics_set_mode(psmouse); |
1581 | if (err) { | |
7968a5dd | 1582 | psmouse_err(psmouse, "Unable to initialize device.\n"); |
fec6e525 HR |
1583 | goto init_fail; |
1584 | } | |
1585 | ||
6c53694f DT |
1586 | priv->pkt_type = SYN_MODEL_NEWABS(info->model_id) ? |
1587 | SYN_NEWABS : SYN_OLDABS; | |
1da177e4 | 1588 | |
b5d21704 | 1589 | psmouse_info(psmouse, |
991d29fe | 1590 | "Touchpad model: %lu, fw: %lu.%lu, id: %#x, caps: %#x/%#x/%#x/%#x, board id: %u, fw id: %u\n", |
6c53694f DT |
1591 | SYN_ID_MODEL(info->identity), |
1592 | SYN_ID_MAJOR(info->identity), SYN_ID_MINOR(info->identity), | |
1593 | info->model_id, | |
1594 | info->capabilities, info->ext_cap, info->ext_cap_0c, | |
1595 | info->ext_cap_10, info->board_id, info->firmware_id); | |
409b7506 | 1596 | |
cdc2466d DT |
1597 | err = set_input_params(psmouse, priv); |
1598 | if (err) { | |
1599 | psmouse_err(psmouse, | |
1600 | "failed to set up capabilities: %d\n", err); | |
1601 | goto init_fail; | |
1602 | } | |
1da177e4 | 1603 | |
887cc127 DT |
1604 | /* |
1605 | * Encode touchpad model so that it can be used to set | |
1606 | * input device->id.version and be visible to userspace. | |
1607 | * Because version is __u16 we have to drop something. | |
1608 | * Hardware info bits seem to be good candidates as they | |
1609 | * are documented to be for Synaptics corp. internal use. | |
1610 | */ | |
6c53694f DT |
1611 | psmouse->model = ((info->model_id & 0x00ff0000) >> 8) | |
1612 | (info->model_id & 0x000000ff); | |
887cc127 | 1613 | |
7968a5dd DD |
1614 | if (absolute_mode) { |
1615 | psmouse->protocol_handler = synaptics_process_byte; | |
1616 | psmouse->pktsize = 6; | |
1617 | } else { | |
1618 | /* Relative mode follows standard PS/2 mouse protocol */ | |
1619 | psmouse->protocol_handler = psmouse_process_byte; | |
1620 | psmouse->pktsize = 3; | |
1621 | } | |
1622 | ||
1da177e4 LT |
1623 | psmouse->set_rate = synaptics_set_rate; |
1624 | psmouse->disconnect = synaptics_disconnect; | |
1625 | psmouse->reconnect = synaptics_reconnect; | |
a1cec061 | 1626 | psmouse->cleanup = synaptics_reset; |
f0d5c6f4 DT |
1627 | /* Synaptics can usually stay in sync without extra help */ |
1628 | psmouse->resync_time = 0; | |
1da177e4 | 1629 | |
6c53694f | 1630 | if (SYN_CAP_PASS_THROUGH(info->capabilities)) |
1da177e4 LT |
1631 | synaptics_pt_create(psmouse); |
1632 | ||
1da177e4 LT |
1633 | /* |
1634 | * Toshiba's KBC seems to have trouble handling data from | |
7ee99161 AS |
1635 | * Synaptics at full rate. Switch to a lower rate (roughly |
1636 | * the same rate as a standard PS/2 mouse). | |
1da177e4 | 1637 | */ |
7705d548 | 1638 | if (psmouse->rate >= 80 && impaired_toshiba_kbc) { |
b5d21704 DT |
1639 | psmouse_info(psmouse, |
1640 | "Toshiba %s detected, limiting rate to 40pps.\n", | |
1641 | dmi_get_system_info(DMI_PRODUCT_NAME)); | |
1da177e4 LT |
1642 | psmouse->rate = 40; |
1643 | } | |
1da177e4 | 1644 | |
6c53694f | 1645 | if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(info->identity)) { |
7968a5dd DD |
1646 | err = device_create_file(&psmouse->ps2dev.serio->dev, |
1647 | &psmouse_attr_disable_gesture.dattr); | |
1648 | if (err) { | |
1649 | psmouse_err(psmouse, | |
1650 | "Failed to create disable_gesture attribute (%d)", | |
1651 | err); | |
1652 | goto init_fail; | |
1653 | } | |
1654 | } | |
1655 | ||
1da177e4 LT |
1656 | return 0; |
1657 | ||
1658 | init_fail: | |
1659 | kfree(priv); | |
7968a5dd DD |
1660 | return err; |
1661 | } | |
1662 | ||
e839ffab BT |
1663 | static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode) |
1664 | { | |
1665 | struct synaptics_device_info info; | |
1666 | int error; | |
1667 | ||
1668 | psmouse_reset(psmouse); | |
1669 | ||
1670 | error = synaptics_query_hardware(psmouse, &info); | |
1671 | if (error) { | |
1672 | psmouse_err(psmouse, "Unable to query device: %d\n", error); | |
1673 | return error; | |
1674 | } | |
1675 | ||
1676 | return synaptics_init_ps2(psmouse, &info, absolute_mode); | |
1677 | } | |
1678 | ||
1679 | int synaptics_init_absolute(struct psmouse *psmouse) | |
7968a5dd DD |
1680 | { |
1681 | return __synaptics_init(psmouse, true); | |
1682 | } | |
1683 | ||
1684 | int synaptics_init_relative(struct psmouse *psmouse) | |
1685 | { | |
1686 | return __synaptics_init(psmouse, false); | |
1da177e4 LT |
1687 | } |
1688 | ||
e839ffab BT |
1689 | static int synaptics_setup_ps2(struct psmouse *psmouse, |
1690 | struct synaptics_device_info *info) | |
1691 | { | |
1692 | bool absolute_mode = true; | |
1693 | int error; | |
1694 | ||
1695 | /* | |
1696 | * The OLPC XO has issues with Synaptics' absolute mode; the constant | |
1697 | * packet spew overloads the EC such that key presses on the keyboard | |
1698 | * are missed. Given that, don't even attempt to use Absolute mode. | |
1699 | * Relative mode seems to work just fine. | |
1700 | */ | |
1701 | if (broken_olpc_ec) { | |
1702 | psmouse_info(psmouse, | |
1703 | "OLPC XO detected, forcing relative protocol.\n"); | |
1704 | absolute_mode = false; | |
1705 | } | |
1706 | ||
1707 | error = synaptics_init_ps2(psmouse, info, absolute_mode); | |
1708 | if (error) | |
1709 | return error; | |
1710 | ||
1711 | return absolute_mode ? PSMOUSE_SYNAPTICS : PSMOUSE_SYNAPTICS_RELATIVE; | |
1712 | } | |
1713 | ||
55e3d922 AS |
1714 | #else /* CONFIG_MOUSE_PS2_SYNAPTICS */ |
1715 | ||
7705d548 DT |
1716 | void __init synaptics_module_init(void) |
1717 | { | |
1718 | } | |
1719 | ||
e839ffab BT |
1720 | static int __maybe_unused |
1721 | synaptics_setup_ps2(struct psmouse *psmouse, | |
1722 | struct synaptics_device_info *info) | |
55e3d922 AS |
1723 | { |
1724 | return -ENOSYS; | |
1725 | } | |
1726 | ||
1727 | #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */ | |
e839ffab BT |
1728 | |
1729 | #ifdef CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS | |
1730 | ||
1731 | /* | |
1732 | * The newest Synaptics device can use a secondary bus (called InterTouch) which | |
1733 | * provides a better bandwidth and allow a better control of the touchpads. | |
1734 | * This is used to decide if we need to use this bus or not. | |
1735 | */ | |
1736 | enum { | |
1737 | SYNAPTICS_INTERTOUCH_NOT_SET = -1, | |
1738 | SYNAPTICS_INTERTOUCH_OFF, | |
1739 | SYNAPTICS_INTERTOUCH_ON, | |
1740 | }; | |
1741 | ||
f4947d79 BT |
1742 | static int synaptics_intertouch = IS_ENABLED(CONFIG_RMI4_SMB) ? |
1743 | SYNAPTICS_INTERTOUCH_NOT_SET : SYNAPTICS_INTERTOUCH_OFF; | |
e839ffab BT |
1744 | module_param_named(synaptics_intertouch, synaptics_intertouch, int, 0644); |
1745 | MODULE_PARM_DESC(synaptics_intertouch, "Use a secondary bus for the Synaptics device."); | |
1746 | ||
1747 | static int synaptics_create_intertouch(struct psmouse *psmouse, | |
1748 | struct synaptics_device_info *info, | |
1749 | bool leave_breadcrumbs) | |
1750 | { | |
1751 | bool topbuttonpad = | |
1752 | psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids) && | |
1753 | !SYN_CAP_EXT_BUTTONS_STICK(info->ext_cap_10); | |
1754 | const struct rmi_device_platform_data pdata = { | |
1755 | .sensor_pdata = { | |
1756 | .sensor_type = rmi_sensor_touchpad, | |
1757 | .axis_align.flip_y = true, | |
2b30297d | 1758 | .kernel_tracking = false, |
e839ffab BT |
1759 | .topbuttonpad = topbuttonpad, |
1760 | }, | |
261bfb33 | 1761 | .gpio_data = { |
e839ffab BT |
1762 | .buttonpad = SYN_CAP_CLICKPAD(info->ext_cap_0c), |
1763 | .trackstick_buttons = | |
1764 | !!SYN_CAP_EXT_BUTTONS_STICK(info->ext_cap_10), | |
1765 | }, | |
1766 | }; | |
1767 | const struct i2c_board_info intertouch_board = { | |
1768 | I2C_BOARD_INFO("rmi4_smbus", 0x2c), | |
1769 | .flags = I2C_CLIENT_HOST_NOTIFY, | |
1770 | }; | |
1771 | ||
1772 | return psmouse_smbus_init(psmouse, &intertouch_board, | |
bf232e46 | 1773 | &pdata, sizeof(pdata), true, |
e839ffab BT |
1774 | leave_breadcrumbs); |
1775 | } | |
1776 | ||
58e5183a | 1777 | /* |
e839ffab BT |
1778 | * synaptics_setup_intertouch - called once the PS/2 devices are enumerated |
1779 | * and decides to instantiate a SMBus InterTouch device. | |
1780 | */ | |
1781 | static int synaptics_setup_intertouch(struct psmouse *psmouse, | |
1782 | struct synaptics_device_info *info, | |
1783 | bool leave_breadcrumbs) | |
1784 | { | |
1785 | int error; | |
1786 | ||
1787 | if (synaptics_intertouch == SYNAPTICS_INTERTOUCH_OFF) | |
1788 | return -ENXIO; | |
1789 | ||
1790 | if (synaptics_intertouch == SYNAPTICS_INTERTOUCH_NOT_SET) { | |
1791 | if (!psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids) && | |
2fef826e BT |
1792 | !psmouse_matches_pnp_id(psmouse, smbus_pnp_ids)) { |
1793 | ||
1794 | if (!psmouse_matches_pnp_id(psmouse, forcepad_pnp_ids)) | |
1795 | psmouse_info(psmouse, | |
1796 | "Your touchpad (%s) says it can support a different bus. " | |
1797 | "If i2c-hid and hid-rmi are not used, you might want to try setting psmouse.synaptics_intertouch to 1 and report this to linux-input@vger.kernel.org.\n", | |
1798 | psmouse->ps2dev.serio->firmware_id); | |
1799 | ||
e839ffab | 1800 | return -ENXIO; |
2fef826e | 1801 | } |
e839ffab BT |
1802 | } |
1803 | ||
1804 | psmouse_info(psmouse, "Trying to set up SMBus access\n"); | |
1805 | ||
1806 | error = synaptics_create_intertouch(psmouse, info, leave_breadcrumbs); | |
1807 | if (error) { | |
1808 | if (error == -EAGAIN) | |
1809 | psmouse_info(psmouse, "SMbus companion is not ready yet\n"); | |
1810 | else | |
1811 | psmouse_err(psmouse, "unable to create intertouch device\n"); | |
1812 | ||
1813 | return error; | |
1814 | } | |
1815 | ||
1816 | return 0; | |
1817 | } | |
1818 | ||
1819 | int synaptics_init_smbus(struct psmouse *psmouse) | |
1820 | { | |
1821 | struct synaptics_device_info info; | |
1822 | int error; | |
1823 | ||
1824 | psmouse_reset(psmouse); | |
1825 | ||
1826 | error = synaptics_query_hardware(psmouse, &info); | |
1827 | if (error) { | |
1828 | psmouse_err(psmouse, "Unable to query device: %d\n", error); | |
1829 | return error; | |
1830 | } | |
1831 | ||
1832 | if (!SYN_CAP_INTERTOUCH(info.ext_cap_0c)) | |
1833 | return -ENXIO; | |
1834 | ||
1835 | return synaptics_create_intertouch(psmouse, &info, false); | |
1836 | } | |
1837 | ||
1838 | #else /* CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS */ | |
1839 | ||
1840 | static int __maybe_unused | |
1841 | synaptics_setup_intertouch(struct psmouse *psmouse, | |
1842 | struct synaptics_device_info *info, | |
1843 | bool leave_breadcrumbs) | |
1844 | { | |
1845 | return -ENOSYS; | |
1846 | } | |
1847 | ||
1848 | int synaptics_init_smbus(struct psmouse *psmouse) | |
1849 | { | |
1850 | return -ENOSYS; | |
1851 | } | |
1852 | ||
1853 | #endif /* CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS */ | |
1854 | ||
1855 | #if defined(CONFIG_MOUSE_PS2_SYNAPTICS) || \ | |
1856 | defined(CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS) | |
1857 | ||
1858 | int synaptics_init(struct psmouse *psmouse) | |
1859 | { | |
1860 | struct synaptics_device_info info; | |
1861 | int error; | |
1862 | int retval; | |
1863 | ||
1864 | psmouse_reset(psmouse); | |
1865 | ||
1866 | error = synaptics_query_hardware(psmouse, &info); | |
1867 | if (error) { | |
1868 | psmouse_err(psmouse, "Unable to query device: %d\n", error); | |
1869 | return error; | |
1870 | } | |
1871 | ||
1872 | if (SYN_CAP_INTERTOUCH(info.ext_cap_0c)) { | |
f4101ff8 BT |
1873 | if ((!IS_ENABLED(CONFIG_RMI4_SMB) || |
1874 | !IS_ENABLED(CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS)) && | |
1875 | /* Forcepads need F21, which is not ready */ | |
1876 | !psmouse_matches_pnp_id(psmouse, forcepad_pnp_ids)) { | |
1877 | psmouse_warn(psmouse, | |
1878 | "The touchpad can support a better bus than the too old PS/2 protocol. " | |
1879 | "Make sure MOUSE_PS2_SYNAPTICS_SMBUS and RMI4_SMB are enabled to get a better touchpad experience.\n"); | |
1880 | } | |
1881 | ||
e839ffab BT |
1882 | error = synaptics_setup_intertouch(psmouse, &info, true); |
1883 | if (!error) | |
1884 | return PSMOUSE_SYNAPTICS_SMBUS; | |
1885 | } | |
1886 | ||
1887 | retval = synaptics_setup_ps2(psmouse, &info); | |
1888 | if (retval < 0) { | |
1889 | /* | |
1890 | * Not using any flavor of Synaptics support, so clean up | |
1891 | * SMbus breadcrumbs, if any. | |
1892 | */ | |
1893 | psmouse_smbus_cleanup(psmouse); | |
1894 | } | |
1895 | ||
1896 | return retval; | |
1897 | } | |
1898 | ||
1899 | #else /* CONFIG_MOUSE_PS2_SYNAPTICS || CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS */ | |
1900 | ||
1901 | int synaptics_init(struct psmouse *psmouse) | |
1902 | { | |
1903 | return -ENOSYS; | |
1904 | } | |
1905 | ||
1906 | #endif /* CONFIG_MOUSE_PS2_SYNAPTICS || CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS */ |